Packless valve.



' H. M. ARTZ; & E. B. LORENZEN.

PAGKLESS VALVE. APPLICATION FILED APRJQ, 1913.

Patented July1,1913.'

, m M m p /5 a o w 5 f F i j M V 23 i tn ease:

bonnet UNITED s s PATENT oiurion n'AnnY M. Anrz, or MANSFIELD, AND nnwann B. LORENZEN, or-sAnn sKY, ,onro.

rAcKLEss VALVE.

To all, whom it may concern -Be it known that we, HARRY M. Anrz, a citizen of the United States, and a resident of Mansfield, in the county of Richland and State of Ohio, and EDWARD B. 'LORENZEN, a citizen of the United States, and a resident of Sandusky, in the county of Erieand State of Ohio, have made certain new and useful Improvements in Packless Valves, of which thefollo'wing is a specification.

Our present invention relates to valves and the particular object thereof is to provide a valve which may be opened-and closed in a manner similar to that of the ordinary valve and which will dispense with-the ne-.

cessity of packing and the gland usually surrounding the valve stem in reciprocating va-lves. We accomplish this object by the structure as shown in the accompanying drawing, in which, 7

Figure 1 is a vertical section through the valve body, the bonnet and the handle stein. Fig. 2 is a similar view through the valve body showing the bonnet and valve and valve rod elevation, and taken substantially at right angles to the section in Fig. 1, and Fig. 3 is a diagrammatic view, taken on an enlarged scale and illustrating the engaging ribs and grooves which coiiperate to dispense'with the necessity for packing.

Referring now to these figures, l'indica-tes the body of our improvedl. valve, which is of the usual construction, having side and base openings, and provided with a valve seat 1 surrounding theupp'er portion of the base opening. The upper ,open mouth of the body 1,is threaded to receive the externa'lly and internally threaded lower portion 10 of the bonnet 2 Wlll0l1 extends upwardly from, -'the may, This bonnet as -'will be clearly seen reference to'Fig. has an 11 per constricted end; pertured to receive t repreduced '11 per, portion stem carrying the handle 9 at its upper end,

'e bonnet having 'a cylindrical bore in which disposed the lower enlarged cylindricril? portion 6 of the handlestem, and the urthei having a lower enlarged bore ip wh ich is disposedfan annular flange 12 m h r i dby the portion 6 of the handle stem.

The inner, surface-o f the portion 5 of the handle; stem is threaded to receive the upper ,ortion of the ,threaded valve stem 21. at he lower' end of'which is the valve disk holtlerB in which the: valve 4: is held bv means iOf a member-5, this valve 4 being Specification of Letters latent.

6 of the handle-- Patented July 1,1913.

Application filed April 1'2, 1913. Serial No, 760,690. j

adapted to engage upon the valve seat 1" and being movable vertically towardand from "the same byrotation of the handle 9 in view of the threaded engagement of the handle.

stem and valve stem, and the fact that the former is prevented ment. i

The annular flange 12 is acted upon by means of a spring 7 coiled about the lower portion of the handle stem and compressed between the lower surface of the said fiange and an annular nut 8' which surrounds-the saidhandle stem and adjustably engages the innerthreads' of the lower bonnetportion 10 as indicated at 1'9. 4 i

, The constricted upper end ofthe bonnet 2 forms a shoulder, the inner surface of which is provided with an annular V -shaped groove surrounding its aperture throulglh t e 'which the upper stem portion 6 projects,

handlestem being provided with a corresponding shoulder between its portions 6 and 6?- which has an annular rib cooperating with the groove, this rib beingindicated at 14 and the groove being indicated at 17. The bonnet 2 also has a shoulder resulting from. the enlarged lower bore before mentioned which receives the annular flange 12, this shoulder having an annular V-shaped groove 15 and the flange 12 having an annular rib 13 cooperating with the groove. Thus from the foregoingit will be seen that the annular flange 12 with the cocperation of the spring 10 and the adjustable nut 8 serves to maintain the ribs 13 and let in engagement during the rotation of the handle stem for the purpose of raising or lowering the valve from and to its seat, and it willbe further seen that this .structure eliminates the necessity for packing and the frequent attention and overhauling and renewingfiof packing incident to the ordinary reciproc'ating valve, the means employed by us for this purpose being simple and adding little if anything to the cost of the construction of the valve.

lVe claim:

1. In a packless' reciprocating valve,=the combination of a body having a valve seat, a threaded valve stem carrying a valve adapted to cooperate with the said seat, a bonnet having connection with the body, a handle stem which is mounted through and rotatable within the bonnet and carries a handle at it'supper outer end, the lower portion of said handle 'stem beingv cylindrical from l'ongitudinalmove- I portion of the bonnet for maintaining the said rib and groove in engagement and to prevent longitudinal movement of the handle stein.

In a packless reciprocating'valve, the combination of a body having a valve seat, a valve -for engagement with the seat and provided with a threaded stem, a bonnet having connection with the body and provided with a cylindrical bore and an upper constricted end forming a shoulder, a handle stem having a lower cylindrical internally threaded portion to, receive the threaded valve stem and an upper reduced portion projecting through the constricted upper end of the bonnet and provided with a handle at its upper end, the lower portion of the reeaeeo bonnet having an enlarged bore forming an annular shoulder and provided with threads upon the lower portion of its wall, an annu-u lar flange surrounding the handle stem and 30 disposed within the said enlarged bore, an adjustable nut engaging the threads of the wall at the lower portion of the enlarged bore, a spring coiled about the lower portion of the handle stein between its said flange 35 and the said nut, and annular ribs having rounded surfaces, formed upon the said flange of the handle stem and also upon its shoulder adjacent the upper reduced portion thereof, the shoulders formed Within the 40 bonnet being provided with annular .V- shaped grooves whereby to receive the said annular'ribs, all for the purpose descr1bed.-

HARRY M. ARTZ. EDWARD B; LORENZEN Vv it-nesses for Harry M. Artz:

E. H. LINDSEY, M. B. PINKL Y. Witnesses for Edward B. Lorenzen:

Jur es M. FRENCH, 'BiiARGARET NOLAN. 

